The
SA-025
Programmable Timer Module is suitable for a wide range of timed security
and access control operations, such as door unlock timing, siren or bell timer, VCR timer,
and so on. Auto-sensing of input voltage and DIP switches for programming make
installation easy.
Features / Specifications:
• Timer can be set from 1 second to 60 minutes
• Can be triggered by applying or removing a positive or negative signal (+/-) or by
powering up the unit
• Relay can be programmed to activate at the start or at the end of the timing cycle
• Relay can also be set to activate for one second at the end of the timing cycle
• Relay can be programmed to pulse (flash) or be steady on
• Built-in reset function to manually reset timing cycle
• Form-C relay, contacts rated 8A @ 120VAC/24VDC
• LED indicates relay is energized
• 12VDC/24VDC operation (auto sensing)
• Current draw – Less than 1mA (standby) or 50mA (relay energized)
• Board measures 2-7/8” x 2-1/2” (73 x 63 mm)
• Functions programmed via DIP switches – no jumpers to cut
Fig. 1 – DIP switch settings
Switch
#1
#2
#3
#4
#5
#6
Off
Fixed 1 sec. Relay
output time
Output at END of
COUNTER
REPEAT timing cycle
Time in MINUTES
Timing controlled by
TRG input
Counter begin at START
of TRG
On
Variable Relay output
time
Output at START of
COUNTER
SINGLE timing cycle
Timing in SECONDS
Timing controlled by
Power Up
Counter begin at END
of TRG
ENFORCER
®
Installation Manual
SA-025
Programmable Timer Module
Wiring:
•
TRG
– Positive (+) trigger signal input
•
TRG
– Negative (-) trigger signal input
(1K ohm resistor required - included)
•
(-)
–
Ground input
•
(+)
– +12VDC to +24VDC input
•
NO
– Relay output (normally open)
•
COM
– Relay output (common)
•
NC
– Relay output (normally closed)
DIP Switch Settings (Programming):
The SA-025 is programmed via a series
of six DIP switches which can be turned
on or off. See fig. 1.
SECO-LARM
SECO-LARM
SECO-LARM
SECO-LARM
SECO-LARM
®
U.S.A., Inc.
U.S.A., Inc.
U.S.A., Inc.
U.S.A., Inc.
U.S.A., Inc.
16842 Millikan Ave., Irvine, CA 92606
SECO-LARM's policy is one of continual development and improvement. For this
reason, SECO-LARM reserves the right to change specifications without notice.
Copyright © 2003
SECO-LARM
®
U.S.A., Inc.
All rights reserved.
file: MIA025_Newf.pmd Feb 2003
b.
Action
– If the TRG terminal is connected to (+) momentarily, the relay output
immediately activates for about one second. To reset the SA-025, the TRG must be
disconnected from (+) for at least two seconds. The timer has no effect.
c.
Triggering by powering unit up
– If DIP switch #5 is set to ON, the output works the
same, but instead of triggering via the TRG terminal, the SA-025 is triggered by being
powered up.
4.
Latched Output, delayed (Fig. 5):
a.
DIP
switch settings:
1 – ON
2 – ON
3 – ON
4 – Timer setting (ON or OFF)
5 – OFF
6 – OFF
b.
Action
– If the TRG terminal is connected to (+) for the time set by the timer, the
relay activates and remains activated. To reset the latched relay, connect the TRG
terminal momentarily to (+) again.
c.
Triggering by powering unit up
– If DIP switch #5 is set to ON, the delay period set
by the timer starts when the SA-025 is powered up. At the end of the delay period,
the relay latches on and remains on until the SA-025 is disconnected from power.
5.
Pulsing or Flashing Output, instant or delay (Fig. 6)
:
a.
DIP
switch settings:
1 – Relay output mode, see below
2 – Instant/delay start, see below
3 – OFF
4 – Timer setting (ON or OFF)
5 – OFF
6 – OFF
b.
Action
– If the TRG terminal is connected to (+) momentarily, the SA-025 waits for
the time set by the timer, and then starts pulsing/flashing. The pulse/flash output lasts
until the TRG terminal is disconnected from (+).
c.
Triggering by powering unit up
– If DIP switch #5 is set to ON, the output works the
same, but instead of triggering via the TRG terminal, the SA-025 is triggered by being
powering up.
d.
Instant/delay start
– If DIP switch #2 is set to ON, the SA-025 waits for the time set
by the timer after triggered or powered up, and then starts pulsing/flashing. If DIP
switch #2 is set to OFF, the SA-025 starts pulsing/flashing as soon as it is triggered
or powered up.
e.
Relay output time
– If DIP switch #1 is set to ON, the relay on and off time depends
on how the timer is set. If DIP switch #1 is set to OFF, the relay on time is fixed at
about 1 second, and the relay off time depends on how the timer is set.
6.
Optional Negative Trigger or Closed-Circuit Trigger (Fig. 7):
If a closed-circuit or negative trigger is required, it is necessary to install a 1K
(1,000-ohm) resistor as shown (included).
